Modelling the resilient modulus of cement-stabilized quarry fines using element-wise calculation

Daniel Castillo*, Yinning Zhang, Augusto Cannone Falchetto, Leena Korkiala-Tanttu

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

78 Lataukset (Pure)

Abstrakti

This paper demonstrates the use of a simple approach to model the mechanical response of cement-stabilized quarry fines (CQF) as bounded base layer material in pavement structures. Quarry fines are secondary materials, i.e. by-products of industrial processes. Quarry fines can be stabilized with chemical agents like cement to improve their strength and stiffness as part of a pavement structure. Using a finite element model of a pavement structure, the response of CQF material was first approximated as fully elastic under static traffic loading. This preliminary result was followed by an iterative process to calculate the resilient modulus of the material, adjusting its response element by element to the individual three-dimensional stress conditions experienced at every spatial coordinate (i.e. principal stresses of the individual finite elements). After 3-5 iterations, the stresses on the CQF and other layers in the pavement structure were found to stabilize and converge.
AlkuperäiskieliEnglanti
OtsikkoEleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields
ToimittajatInge Hoff, Helge Mork, Rabbira Saba
KustantajaCRC Press
Luku42
Sivut457-466
Sivumäärä10
Vuosikerta2
ISBN (elektroninen)978-1-003-22289-7, 978-1-032-12049-2
DOI - pysyväislinkit
TilaJulkaistu - 7 heinäk. 2022
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Conference on the Bearing Capacity of Roads, Railways and Airfields - Trondheim, Norja
Kesto: 25 kesäk. 202227 kesäk. 2022
Konferenssinumero: 11

Conference

ConferenceInternational Conference on the Bearing Capacity of Roads, Railways and Airfields
LyhennettäBCRRA
Maa/AlueNorja
KaupunkiTrondheim
Ajanjakso25/06/202227/06/2022

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